阅读说明：本技术 一种使用稳定的抗大冲击悬丝摆式加速度计 (Stable-to-use large-impact-resistant suspension wire pendulum accelerometer ) 是由 李�东 杨航 于 2020-12-18 设计创作，主要内容包括：本申请涉及加速度计加工技术领域,具体公开了一种使用稳定的抗大冲击悬丝摆式加速度计,包括底座、外壳、接线座组件、信号器组件、摆组件、电路组件、平板；摆组件包括摆框架、线圈、涡流片、焊丝片胶膜块、两个玻璃管胶粘套筒、两个焊丝片、两个石英管、两个焊丝、第一支承柱、第二支承柱,平板底面固设有两个与两个玻璃管胶粘套筒一一对应的稳固块,两个稳固块上分别螺纹连接有上限位杆,上限位杆和玻璃管胶粘套筒之间形成上间隙；底座上螺纹连接有两个与两个玻璃管胶粘套筒一一对应的下限位杆,下限位杆与玻璃管胶粘套筒之间形成下间隙,且下间隙和上间隙相等。该悬丝摆式加速度计,降低了悬丝因过载而发生损坏的情况,提高其使用的稳定性。(The application relates to the technical field of accelerometer processing, and particularly discloses a stable-use large-impact-resistant suspension wire pendulum type accelerometer, which comprises a base, a shell, a wire connection seat assembly, a annunciator assembly, a pendulum assembly, a circuit assembly and a flat plate; the pendulum assembly comprises a pendulum frame, a coil, a vortex sheet, a welding wire sheet adhesive film block, two glass tube adhesive sleeves, two welding wire sheets, two quartz tubes, two welding wires, a first supporting column and a second supporting column, wherein two stabilizing blocks which correspond to the two glass tube adhesive sleeves one to one are fixedly arranged on the bottom surface of the flat plate, upper limiting rods are respectively in threaded connection with the two stabilizing blocks, and an upper gap is formed between each upper limiting rod and the corresponding glass tube adhesive sleeve; threaded connection has two lower limiting rods with two sticky sleeve one-to-one of glass pipe on the base, forms clearance down between lower limiting rod and the sticky sleeve of glass pipe, and the clearance equals with last clearance down. The suspension wire pendulum type accelerometer reduces the damage of the suspension wire due to overload and improves the use stability of the suspension wire.)

1. A stable high impact resistance pendulum accelerometer, comprising: the circuit breaker comprises a base (1), a shell (2) arranged on the base (1), a wiring base component (3) arranged on the base (1), a signal device component (4) arranged on the base (1), a swinging component (5) arranged between the wiring base component (3) and the signal device component (4), a circuit component (7) arranged above the swinging component (5), a flat plate (6) arranged between the circuit component (7) and the swinging component (5), N magnetic steel (13) arranged on the base (1), S magnetic steel (15) arranged on the base (1), small soft magnetic blocks (151) arranged on the N magnetic steel (13), and magnetic shunt strips (16) arranged between the N magnetic steel (13) and the S magnetic steel (15);

the pendulum assembly (5) comprises a pendulum frame (51), coils (52) arranged on the outer peripheral surface of the pendulum frame (51), a vortex sheet (53) arranged on the pendulum frame (51), a welding wire sheet adhesive film block (54) arranged on the pendulum frame (51), and two glass tube adhesive sleeves (56) respectively arranged on the pendulum frame (51) and on two sides of the welding wire sheet adhesive film block (54), wherein N magnetic steel (13) is positioned in the pendulum frame (51), one end, far away from the pendulum frame (51), of the vortex sheet (53) extends into the annunciator assembly (4), welding wire sheets (55) are respectively arranged on the side surfaces of two ends of the welding wire sheet adhesive film block (54), two quartz tubes (57) are respectively sleeved in the glass tube adhesive sleeves (56), two welding wires (58) are respectively arranged in the quartz tubes (57), two quartz tubes (57) are respectively filled with oil, a first supporting column (591) for supporting one welding wire (58) is arranged on the base (1), one end of the welding wire (58) close to the first supporting column (591) is fixedly arranged on the first supporting column (591), the other end of the welding wire passes through the quartz tube (57) and is fixedly arranged on the welding wire sheet (55), a second supporting column (592) used for supporting the rest welding wire (58) is further arranged on the base (1), one end of the welding wire (58) close to the second supporting column (592) is fixedly arranged on the second supporting column (592), and the other end of the welding wire (58) passes through the quartz tube (57) and is fixedly arranged on the welding wire sheet (55);

two stabilizing blocks (81) which correspond to the two glass tube adhesive sleeves (56) one by one are fixedly arranged on the bottom surface of the flat plate (6) above the swing frame (51), upper limiting rods (82) are respectively in threaded connection with the two stabilizing blocks (81), upper threaded holes are formed in the stabilizing blocks (81), the bottom surface of each upper limiting rod (82) is positioned on the horizontal plane, and an upper gap is formed between each upper limiting rod and each glass tube adhesive sleeve (56);

the glass tube gluing device is characterized in that two lower limiting rods (83) corresponding to two glass tube gluing sleeves (56) one to one are connected to the lower portion of the swing frame (51) in the base (1) in a threaded mode, a lower threaded hole is formed in the base (1), the top surface of each lower limiting rod (83) is located in the horizontal plane and forms a lower gap between the glass tube gluing sleeves (56), and the lower gap and the upper gap are equal.

2. A stable high impact resistance pendulum accelerometer according to claim 1, wherein: the two stabilizing blocks (81) and the flat plate (6) are integrally formed, and an upper threaded hole is also formed in the flat plate (6).

3. A stable high impact resistance pendulum accelerometer according to claim 2, wherein: the two stabilizing blocks (81) are connected into a whole to form a strip-shaped stabilizing block, and the strip-shaped stabilizing block and the flat plate (6) are integrally formed.

4. A stable high impact resistance pendulum accelerometer according to claim 3, wherein: the top surface of the upper limiting rod (82) is positioned in the upper threaded hole, and the bottom surface of the lower limiting rod (83) is positioned in the lower threaded hole.

5. A stable high impact resistance pendulum accelerometer according to claim 1, wherein: the top end of the upper limiting rod (82) is provided with an upper groove (821) convenient for the upper limiting rod to rotate, and the bottom end of the lower limiting rod (83) is provided with a lower groove (831) convenient for the lower limiting rod to rotate.

6. A stable high impact resistance pendulum accelerometer according to claim 1, wherein: the outer peripheral surface of the upper limiting rod (82) is connected with the bottom surface of the stabilizing block (81) in an adhesive mode, and the outer peripheral surface of the lower limiting rod (83) is connected with the top surface of the base (1) in an adhesive mode.

7. A stable high impact resistance pendulum accelerometer according to claim 1, wherein: the cross section of the welding wire (58) is square, the top of the first supporting column (591) is cut off along a vertical plane and forms a plane, the fixed ends of the welding wire (58) and the first supporting column (591) are located on the vertical plane along the height direction, the top of the second supporting column (592) is provided with an adjusting shaft (592), the adjusting shaft (592) penetrates through the second supporting column (592) and is in rotary connection with the second supporting column, one end, close to the welding wire piece (55), of the adjusting shaft (592), one end, close to the welding wire piece (55), of the second supporting column (592) is cut off along the vertical plane and forms a plane, the welding wire (58) is fixedly arranged on the adjusting shaft (592), the fixed ends of the welding wire (58) and the adjusting shaft (592) are located on the vertical plane along the height direction, and an abdicating opening is formed in one end, far away from the welding wire piece (55), of the adjusting shaft (592).

8. A stable high impact resistance pendulum accelerometer according to claim 1, wherein: threaded connection has stopper pole (85) between N magnet steel (13), S magnet steel (15) on base (1), first screw hole has been seted up on base (1), threaded connection has regulation pole (86) of being convenient for adjusting parameter between N magnet steel (13), S magnet steel (15) on base (1), the second screw hole has been seted up on base (1), mounting hole (862) have been seted up on the top of regulation pole (86), be provided with circle magnetic sheet (864), circle magnetic sheet (863) down in mounting hole (862), mounting hole (862) are provided with between circle magnetic sheet (864) and circle magnetic sheet (863) even piece (865) down.

9. A stable high impact resistance pendulum accelerometer according to claim 8, wherein: the bottom end of the limiting rod (85) is provided with a first groove (851) convenient for the limiting rod to rotate, and the bottom end of the adjusting rod (86) is provided with a second groove (861) convenient for the adjusting rod to rotate.

Technical Field

The application relates to the technical field of accelerometer processing, in particular to a stable-use large-impact-resistance suspension wire pendulum type accelerometer.

Background

The accelerometer is one of the most important elements in the inertial navigation system and is used for measuring the constant and low-frequency acceleration acting along the input shaft of the accelerometer and the overload or acceleration of a sensitive system in the directions of three coordinate axes during the flight process. The pendulum type servo linear accelerometer uses the negative feedback principle of closed loop system to suspend the detected mass at a certain fixed position of its structure, and the platinum silver wire which is used to support the detected mass and passes through the special damping silicone oil glass tube is called suspension wire. The suspension wires are used as supports of the sensitive coils and are key parts of the accelerometer.

At present, the pendulum accelerometers mainly include quartz flexible accelerometers and suspension wire pendulum accelerometers. The quartz flexible accelerometer has the advantages of simple structure and low cost, but the impact resistance is low, and the nonlinear performance of the quartz flexible accelerometer is sharply reduced when the overload is more than 70 g. Although the suspension wire pendulum type accelerometer has complex structure and higher cost, the suspension wire pendulum type accelerometer has good shock resistance, and the nonlinear performance can still reach 1 multiplied by 10 when the overload is more than 150g^-4。

In view of the above-mentioned related technologies, in the practical use of the pendulum-type accelerometer, the inventor thinks that the pendulum-type accelerometer has three states from power-on to stable output, which are respectively a non-working free state when not powered on, a transient state at the moment of power-on, and a stable output state when powered on.

Disclosure of Invention

In order to reduce the damage of the suspension wires and improve the use stability of the suspension wire pendulum type accelerometer, the application provides the suspension wire pendulum type accelerometer which is stable in use and resists large impact.

The application provides an use stable big impact resistance suspension wire pendulum type accelerometer, adopts following technical scheme:

a stable-use high-impact-resistance suspension wire pendulum accelerometer comprises a base, a shell arranged on the base, a wiring seat assembly arranged on the base, a signaler assembly arranged on the base, a pendulum assembly arranged between the wiring seat assembly and the signaler assembly, a circuit assembly arranged above the pendulum assembly, a flat plate arranged between the circuit assembly and the pendulum assembly, N magnetic steels arranged on the base, S magnetic steels arranged on the base, small soft magnetic blocks arranged on the N magnetic steels, and magnetic shunt strips arranged between the N magnetic steels and the S magnetic steels;

the pendulum assembly comprises a pendulum frame, a coil arranged on the peripheral surface of the pendulum frame, a vortex sheet arranged on the pendulum frame, a welding wire film block arranged on the pendulum frame, and two glass tube adhesive sleeves respectively arranged on the pendulum frame and on two sides of the welding wire film block, wherein N magnetic steel is positioned in the pendulum frame, one end of the vortex sheet far away from the pendulum frame extends into the annunciator assembly, welding wire sheets are respectively arranged on the side surfaces of two ends of the welding wire film block, quartz tubes are respectively sleeved in the two glass tube adhesive sleeves, welding wires are respectively arranged in the two quartz tubes, the two quartz tubes are respectively filled with oil, a first supporting column for supporting one welding wire is arranged on the base, one end of the welding wire close to the first supporting column is fixedly arranged on the first supporting column, the other end of the welding wire passes through the quartz tube and is fixedly arranged on the welding wire sheet, a second supporting column for supporting the remaining welding wire is further arranged on the base, one end of the welding wire close to the second supporting column is fixedly arranged on the second supporting column, and the other end of the welding wire penetrates through the quartz tube and is fixedly arranged on the welding wire sheet;

two stabilizing blocks which correspond to the two glass tube adhesive sleeves one by one are fixedly arranged on the bottom surface of the flat plate above the swing frame, upper limiting rods are respectively connected to the two stabilizing blocks in a threaded manner, upper threaded holes are formed in the stabilizing blocks, and the bottom surface of each upper limiting rod is positioned on a horizontal plane and forms an upper gap with the glass tube adhesive sleeve;

the glass tube gluing device is characterized in that two lower limiting rods in one-to-one correspondence with two glass tube gluing sleeves are connected to the base through threads below the swing frame, a lower threaded hole is formed in the base, the top surface of each lower limiting rod is located in the horizontal plane and forms a lower gap with the glass tube gluing sleeves, and the lower gap is equal to the upper gap.

Through adopting above-mentioned technical scheme, set up two steady pieces, two last spacing rods on the flat board, set up two lower spacing rods on the base, the one end of hanging silk sets firmly on first support column, second support column, two welding wire pieces simultaneously, and the quartz capsule sets firmly at the gluey sleeve of glass pipe, goes up and forms the upper gap between spacing rod and the gluey sleeve of glass pipe, forms the lower gap between spacing rod and the gluey sleeve of glass pipe down. Through two steady blocks, two last check bars, two lower check bars, two glass pipe adhesive sleeve, go up the clearance, mutually support between the clearance down, not only do not influence the normal use of suspension wire pendulum type accelerometer, and when suspension wire pendulum type accelerometer receives the impact from inoperative free state to transition process state, glass pipe adhesive sleeve moves down and contradicts with lower check bar top surface, or glass pipe adhesive sleeve moves up and contradicts with last check bar bottom surface, thereby make glass pipe adhesive sleeve exert the effort to lower check bar or last check bar, counter force is exerted to glass pipe adhesive sleeve to lower check bar or last check bar, and reduce glass pipe adhesive sleeve and take place too big vibration, thereby reduce the condition that the suspension wire takes place to damage because of overloading, improve the stability that suspension wire pendulum type accelerometer used.

Simultaneously, set up the firm piece on the flat board, and make go up the gag lever post and firm piece threaded connection, gag lever post and base threaded connection down, and the bottom surface of going up the gag lever post is the horizontal plane, the top surface of gag lever post is the horizontal plane down, it is the same with lower clearance to go up the clearance, the stability of connecting of gag lever post and firm piece has been increased, still increased the sticky sleeve of glass pipe and last gag lever post, the stability of contradicting between the gag lever post down, improve the sticky sleeve of glass pipe in last gag lever post, the stability of removing between the gag lever post down, and further improved the stability that the pendulum-type accelerometer of hanging silk used.

Preferably, the two stabilizing blocks and the flat plate are integrally formed, and the flat plate is also provided with an upper threaded hole.

Through adopting above-mentioned technical scheme, will stabilize piece and dull and stereotyped integrated into one piece, compare and bond the piece that stabilizes in dull and stereotyped bottom surface, though increased the processing degree of difficulty that stabilizes piece and flat board, the method of this application has increased the joint strength who stabilizes piece and flat board, has still saved the assembly cycle and the manpower of stabilizing piece and flat board simultaneously.

Preferably, the two stabilizing blocks are connected into a whole to form a strip-shaped stabilizing block, and the strip-shaped stabilizing block and the flat plate are integrally formed.

Through adopting above-mentioned technical scheme, compare two firm pieces and process respectively, connect two firm pieces as an organic whole, be convenient for two firm pieces and dull and stereotyped integrated into one piece's processing, but also increased the joint strength between two firm pieces and the flat board.

Preferably, the top surface of the upper limiting rod is located in the upper threaded hole, and the bottom surface of the lower limiting rod is located in the lower threaded hole.

Through adopting above-mentioned technical scheme, when installing circuit component on the flat board, reduce the influence of last spacing pole to circuit component installation. When the base is installed on the machine, the influence of the lower limiting rod on the installation of the base is reduced.

Preferably, the top end of the upper limiting rod is provided with an upper groove convenient for the upper limiting rod to rotate, and the bottom end of the lower limiting rod is provided with a lower groove convenient for the lower limiting rod to rotate.

Through adopting above-mentioned technical scheme, when installing the gag lever post, the rotation of gag lever post is convenient for go up to the upper groove, and then is convenient for go up the removal of gag lever post in last screwed hole to be convenient for adjust the distance between gag lever post and the sticky sleeve of glass pipe. When the gag lever post under the installation, the gag lever post rotates under the lower groove is convenient for, and then the gag lever post removes in screw hole down under being convenient for to be convenient for adjust down the distance between gag lever post and the sticky sleeve of glass pipe.

Preferably, the peripheral surface of the upper limiting rod is glued with the bottom surface of the stabilizing block, and the peripheral surface of the lower limiting rod is glued with the top surface of the base.

Through adopting above-mentioned technical scheme, not only increased the joint strength of last gag lever post and steady piece, also increased the joint strength of gag lever post and base down, but also avoided other unable personnel to adjust the position of last gag lever post, lower gag lever post to influence the use of suspension wire pendulum type accelerometer, improve the stability that suspension wire pendulum type accelerometer used.

Preferably, the cross section of welding wire is square, the top of first support post is along plumb face cut off and form the plane, the stiff end of welding wire and first support post is located along the plumb face of direction of height, the top of second support post is provided with the regulating spindle, the regulating spindle runs through the second support post and is connected rather than rotating, the one end that the regulating spindle is close to the welding wire piece, the one end that the second support post is close to the welding wire piece are along plumb face cut off and form the plane, the welding wire sets firmly on the regulating spindle, just the stiff end of welding wire and regulating spindle is located along the plumb face of direction of height, the regulating spindle is kept away from the one end of welding wire piece and has been seted up the trompil of stepping down.

Through adopting above-mentioned technical scheme, set up the regulating spindle on the second support post, the alignment of two welding wires of being convenient for, the installation of the welding wire of being convenient for.

Preferably, threaded connection has the stopper pole between N magnet steel, S magnet steel on the base, set up first screw hole on the base, threaded connection has the regulation pole of being convenient for adjusting parameter between N magnet steel, S magnet steel on the base, set up the second screw hole on the base, the mounting hole has been seted up on the top of regulation pole, be provided with circle magnetic sheet, circle magnetic sheet down in the mounting hole, the mounting hole is provided with gluey even piece between circle magnetic sheet and circle magnetic sheet down.

By adopting the technical scheme, when the suspension wire pendulum type accelerometer is in a non-working free state, the limiting rod plays a supporting role on the pendulum frame, and the use stability of the pendulum assembly is improved. The adjusting rod can adjust the parameters of the suspension wire pendulum type accelerometer, and the practicability of the suspension wire pendulum type accelerometer is improved.

Preferably, the bottom end of the limiting rod is provided with a first groove convenient for rotation of the limiting rod, and the bottom end of the adjusting rod is provided with a second groove convenient for rotation of the adjusting rod.

Through adopting above-mentioned technical scheme, when the installation stopper pole, the rotation of stopper pole is convenient for to first recess, and then the stopper pole of being convenient for in the removal of first threaded hole to be convenient for adjust the mounted position of stopper pole. When the adjusting rod is installed, the second groove is convenient for the adjusting rod to rotate, and then the adjusting rod is convenient to move in the second threaded hole, so that the installation position of the adjusting rod is convenient to adjust.

To sum up, the application comprises the following beneficial technical effects:

the utility model provides an anti big impact pendulum-type accelerometer of stable in use, through two steady pieces, two go up the spacing pole, two spacing poles down, two glass pipe gluing sleeve, go up the clearance, down the mutually supporting between the clearance, not only do not influence the normal use of pendulum-type accelerometer of hanging silk, when the pendulum-type accelerometer of hanging silk receives the impact from inoperative free state to the transition in-process state, reduce the sticky sleeve of glass pipe and take place too big vibration, thereby reduce the condition that the hanging silk takes place to damage because of overloading, improve the stability that pendulum-type accelerometer of hanging silk used.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present application.

Fig. 2 is a schematic view showing the internal structure of the housing.

Fig. 3 is a schematic diagram showing the construction of the annunciator assembly.

Fig. 4 is a schematic diagram for showing the structure of the circular coil.

Fig. 5 is an enlarged view of a portion a in fig. 4.

Fig. 6 is a schematic view for showing the construction of the pendulum assembly.

Fig. 7 is a schematic view showing the structure of N magnetic steel and S magnetic steel.

Fig. 8 is a partial sectional view for showing the upper limit lever and the lower limit lever.

Fig. 9 is a partial sectional view for showing the stopper rod and the adjustment lever.

Description of reference numerals: 1. a base; 11. a first support plate; 12. a second support plate; 13. n magnetic steel; 14. a third support plate; 15. s, magnetic steel; 151. a small soft magnetic block; 16. a magnetic shunt strip; 17. a fourth mounting groove; 18. a cover plate; 2. a housing; 21. a first abdication opening; 3. a wire holder assembly; 31. a wire holder; 32. a glass-glazed sleeve; 33. a binding post; 34. an inflation tube; 4. an annunciator assembly; 41. mounting a column; 42. fixing a sleeve; 421. a kidney-shaped mounting hole; 43. locking the bolt; 44. mounting a plate; 441. perforating; 45. a circular coil; 46. a lug plate; 47. a first heat dissipation groove; 48. protecting the film; 5. a pendulum assembly; 51. a pendulum frame; 52. a coil; 53. a vortex sheet; 54. welding wire piece glue film blocks; 55. a wire bonding sheet; 56. gluing a sleeve on the glass tube; 57. a quartz tube; 58. welding wires; 591. a first support column; 5911. a first glass-glaze stationary sleeve; 592. a second support column; 5921. a second glass glaze fixing sleeve; 5922. an adjustment shaft; 6. a flat plate; 61. a first mounting screw; 62. a column; 63. a second mounting screw; 64. a second heat dissipation groove; 65. a second abdication opening; 7. a circuit component; 81. a stabilizing block; 82. an upper limiting rod; 821. an upper groove; 83. a lower limit lever; 831. a lower groove; 84. sealing the rubber block; 85. a stopper rod; 851. a first groove; 86. adjusting a rod; 861. a second groove; 862. mounting holes; 863. a lower circular magnetic sheet; 864. an upper round magnetic sheet; 865. and (5) gluing the blocks.

Detailed Description

The present application is described in further detail below with reference to figures 1-9.

The embodiment of the application discloses a stable-in-use high-impact-resistance suspension wire pendulum accelerometer. Referring to fig. 1 and 2, the portable electronic device includes a base 1 and a housing 2 clamped to the base 1. The top surface of 1 one end of base sets firmly first backup pad 11, is provided with wire holder subassembly 3 on the first backup pad 11. The top surface of the other end of the base 1 is provided with an annunciator component 4. A pendulum assembly 5 is arranged above the base 1, and the pendulum assembly 5 is positioned between the first support plate 11 and the annunciator assembly 4. A flat plate 6 is arranged above the pendulum assembly 5, and the flat plate 6 is arranged on the base 1. And the annunciator assembly 4 is positioned between the plate 6 and the base 1. The top surface of the plate 6 is mounted with a circuit assembly 7. The shell 2 is bottom opening and cavity setting, and signal ware subassembly 4, pendulum subassembly 5, circuit subassembly 7, flat board 6 all are located shell 2, and shell 2 is seted up with the first opening of stepping down 21 of connection terminal subassembly 3 looks adaptation.

Referring to fig. 1, the wire holder assembly 3 includes a wire holder 31 fixedly disposed on the first supporting plate 11, a plurality of glass glaze sleeves 32 are uniformly and fixedly disposed on the wire holder 31 along the circumferential direction thereof, a wiring post 33 is disposed in the glass glaze sleeve 32, the wiring post 33 is fixedly connected to the glass glaze sleeve 32, and a gas tube 34 is fixedly disposed at the center of the wire holder 31.

Referring to fig. 3 and 4, the annunciator assembly 4 includes a mounting post 41 fixedly disposed on the top surface of the base 1, a fixing sleeve 42 fixedly connected to the mounting post 41 is sleeved on the outer peripheral surface of the mounting post 41, and referring to fig. 5, a locking bolt 43 is disposed between the fixing sleeve 42 and the mounting post 41, and the locking bolt 43 penetrates through the side wall of the fixing sleeve 42 and extends into the mounting post 41. The screw of the locking bolt 43 is connected with the fixed sleeve 42 in a sliding way, and the screw of the locking bolt 43 is connected with the mounting column 41 in a threaded way. The side wall of the fixing sleeve 42 is provided with a waist-shaped mounting hole 421 along the height direction. The peripheral surface of the mounting post 41 is glued to the top surface of the fixing sleeve 42. Two mounting plates 44 are fixedly arranged on the outer peripheral surface of the fixing sleeve 42 along the height direction, and an accommodating gap is formed between the two mounting plates 44. The two mounting plates 44 are respectively provided with a through hole 441, the inner side surfaces of the two mounting plates 44 are respectively fixedly provided with a circular coil 45 at the through hole 441, two ends of the circular coil 45 respectively extend out of the accommodating gap and are positioned on one side of the mounting plate 44 far away from the mounting column 41, the side surface of the mounting plate 44 far away from the mounting column 41 is fixedly provided with two lugs 46, and two ends of the two lugs 46 and the two ends of the circular coil 45 are in one-to-one correspondence and are fixedly connected with the two lugs. The side of the mounting plate 44 away from the mounting post 41 is uniformly provided with a plurality of first heat dissipation grooves 47. The inner side surfaces of the two mounting plates 44 are fixedly provided with protective films 48 at the positions of the circular coils 45. The side of the mounting plate 44 remote from the mounting post 41 is also secured with a protective film 48.

Referring to fig. 6 and 7, the pendulum assembly 5 includes a pendulum frame 51, a coil 52 is disposed on an outer peripheral surface of the pendulum frame 51, an eddy current sheet 53 is fixedly disposed on an outer peripheral surface of one end of the pendulum frame 51, and an end of the eddy current sheet 53 away from the pendulum frame 51 is located in a receiving gap formed between the two mounting plates 44. The outer peripheral surface of one end of the pendulum frame 51 is fixedly provided with a welding wire film block 54 at the middle position, and the coil 52 passes through the welding wire film block 55 and is fixedly connected with the welding wire film block. The welding wire sheet rubber film block 54 is fixedly provided with welding wire sheets 55 along the side surfaces of the two ends in the length direction. The welding wire piece glue film block 54 is provided with two glass tube gluing sleeves 56 along the two sides of the length direction, namely the number of the glass tube gluing sleeves 56 is two, the glass tube gluing sleeves 56 are fixedly arranged on the outer peripheral surface of the pendulum frame 51, and the coil 52 penetrates through the glass tube gluing sleeves 56 and is fixedly connected with the glass tube gluing sleeves. The two glass tube adhesive sleeves 56 are respectively sleeved with a quartz tube 57 fixedly connected with the two glass tube adhesive sleeves, welding wires 58 are respectively arranged in the two quartz tubes 57, the cross section of each welding wire 58 is square, and the two quartz tubes 57 are respectively filled with oil. One end of the welding wire 58 is fixed on the welding wire sheet 55 through oiling.

Referring to fig. 7 and 8, the base 1 is provided with a first supporting column 591 on one side of one welding wire 58 away from the welding wire piece 55, a first glass glaze fixing sleeve 5911 is fixedly arranged on the outer peripheral surface of the bottom end of the first supporting column 591, a first installation groove matched with the first glass glaze fixing sleeve 5911 is formed in the base 1, and the first glass glaze fixing sleeve 5911 is fixedly arranged in the first installation groove. The top of the first support column 591 is cut off along a vertical plane and formed into a flat surface, and one end of the welding wire 55 near the first support column 591 is fixedly connected with the first support column 591, and the fixed end thereof is disposed on the vertical plane in the height direction. The base 1 is provided with a second supporting column 592 on one side of the remaining one welding wire 58 away from the welding wire piece 55, a second glass glaze fixing sleeve 5921 is fixedly arranged on the outer circumferential surface of the bottom end of the second supporting column 592, a second mounting groove matched with the second glass glaze fixing sleeve 5921 is formed in the base 1, and the second glass glaze fixing sleeve 5921 is fixedly arranged in the second mounting groove. The top of the second support column 592 is provided with an adjustment shaft 5922, the adjustment shaft 5922 extends through the second support column 592 and is rotationally connected therewith, and the adjustment shaft 5922 is disposed radially along the second support column 592. One end of the adjusting shaft 5922 close to the welding wire piece 55 and one end of the second supporting column 592 close to the welding wire piece 55 are cut along a vertical plane and form a plane, one end of the welding wire 55 close to the second supporting column 592 is fixedly connected with the adjusting shaft 5922, the fixed end of the adjusting shaft 5922 is arranged on the vertical plane along the height direction, and one end of the adjusting shaft 5922 far away from the welding wire piece 55 is provided with an abdicating opening.

Referring to fig. 7, a second supporting plate 12 is fixedly disposed on the base 1 in the swing frame 51, and N magnetic steels 13 are fixedly disposed on the side of the second supporting plate 12 away from the glass tube adhesive sleeve 56. A third supporting plate 14 is fixedly arranged outside the swing frame 51 on the base 1, an S magnetic steel 15 is fixedly arranged on the side face, close to the N magnetic steel 13, of the third supporting plate 14, and a small soft magnetic block 151 is fixedly arranged at one end, far away from the vortex sheet 53, of the N magnetic steel 13. Two parallel magnetic shunt strips 16 are fixedly arranged between the N magnetic steel 13 and the S magnetic steel 15.

Referring to fig. 4 and 8, an upper receiving chamber is formed between the top surface of the plate 6 and the housing 2, and a lower receiving chamber is formed between the bottom surface of the plate 6 and the housing 2. Dull and stereotyped 6 is provided with two first mounting screws 61 between one end and the first backup pad 11 that is close to first backup pad 11, and first mounting screw 61 runs through dull and stereotyped 6 and stretches into first backup pad 11 in, and first mounting screw 61 slides with dull and stereotyped 6 and is connected, first mounting screw 61 and 11 threaded connection of first backup pad, and dull and stereotyped 6 top surface in first mounting screw 61 department offer with the second mounting groove of the screw cap looks adaptation of first mounting screw 61. An upright column 62 is arranged between one end of the flat plate 6 far away from the first supporting plate 11 and the base 1, and the upright column 62 is fixedly arranged on the top surface of the base 1. A second mounting screw 63 is arranged between the upright post 62 and the plate 6, the second mounting screw 63 penetrates through the plate 6 and extends into the upright post 62, the second mounting screw 63 is connected with the plate 6 in a sliding manner, the second mounting screw 63 is connected with the upright post 62 in a threaded manner, and a third mounting groove matched with a screw cap of the second mounting screw 63 is formed in the position, on the top surface of the plate 6, of the second mounting screw 63. The outer peripheral surface of the flat plate 6 is provided with a plurality of second heat dissipation grooves 64, and the upper accommodation chamber and the lower accommodation chamber are communicated through the plurality of second heat dissipation grooves 64, so that the air flow can flow conveniently. A second abdicating opening 65 convenient for wiring is further formed at one end corner of the flat plate 6.

Referring to fig. 4 and 8, two stabilizing blocks 81 are fixedly arranged on the bottom surface of the flat plate 6 above the swing frame 51, and the two stabilizing blocks 81 correspond to the two glass tube adhesive sleeves 56 one by one. The two stabilizing blocks 81 are respectively provided with two upper limiting rods 82, namely the number of the upper limiting rods 82 is two, and the two upper limiting rods 82 correspond to the two glass tube adhesive sleeves 56 one by one. The bottom surface of the upper limiting rod 82 is located on the horizontal plane, and the bottom end of the upper limiting rod 82 penetrates through the flat plate 6 and the stabilizing block 81, and forms an upper gap with the glass tube adhesive sleeve 56. Go up spacing pole 82 respectively with dull and stereotyped 6, firm piece 81 threaded connection, all seted up threaded hole on dull and stereotyped 6, the firm piece 81. The top surface of the upper limit rod 82 is provided with an upper groove 821 convenient for the rotation of the upper limit rod, and the top surface of the upper limit rod 82 is positioned in the upper threaded hole. The outer peripheral surface of the upper limiting rod 82 is glued to the bottom surface of the fixing block 81. In order to facilitate the processing of the stabilizing blocks 81, the two stabilizing blocks 81 are connected into a whole to form a strip-shaped stabilizing block, and the strip-shaped stabilizing block and the flat plate 6 are integrally formed. The end corners of the strip-shaped stabilizing blocks are arranged in a manner of rounding off.

Referring to fig. 4 and 8, two lower limiting rods 83 are arranged on the base 1 below the swing frame 51, and the two lower limiting rods 83 correspond to the two glass tube adhesive sleeves 56 one by one. The top surface of the lower limiting rod 83 is located on the horizontal plane, the top end of the lower limiting rod 83 penetrates through the base 1, a lower gap is formed between the lower limiting rod and the glass tube adhesive sleeve 56, and the lower gap is equal to the upper gap. The lower limit rod 83 is in threaded connection with the base 1, and the base 1 is provided with a lower threaded hole. The bottom surface of the lower limiting rod 83 is provided with a lower groove 831 convenient for the lower limiting rod to rotate, and the bottom surface of the lower limiting rod 83 is positioned in the lower threaded hole. The peripheral surface of the lower limiting rod 83 is connected with the top surface of the base 1 by glue, and a sealing rubber block 84 is fixedly arranged at the bottom end of the lower limiting rod 83 in the lower threaded hole.

Referring to fig. 9, a fourth mounting groove 17 is formed in the bottom surface of the base 1, a limiting rod 85 is arranged between the N magnetic steel 13 and the S magnetic steel 15 on the fourth mounting groove 17, the top surface of the limiting rod 85 is located on a horizontal plane, the top end of the limiting rod 85 penetrates through the base 1, a first gap is formed between the limiting rod 85 and the N magnetic steel 13 and between the limiting rod 85 and the S magnetic steel 15, and the limiting rod 85 is in threaded connection with the base 1. The base 1 is provided with a first threaded hole. The bottom end of the limiting rod 85 is located in the fourth mounting groove 17, and the bottom end of the limiting rod 85 is provided with a first groove 851 facilitating rotation of the limiting rod. An adjusting rod 86 convenient for parameter adjustment is further arranged between the N magnetic steel 13 and the S magnetic steel 15 on the fourth mounting groove 17, the top surface of the adjusting rod 86 is located on the horizontal plane, the top end of the adjusting rod 86 penetrates through the base 1, a second gap is formed between the adjusting rod 86 and the N magnetic steel 13 and the S magnetic steel 15, and the adjusting rod 86 is in threaded connection with the base 1. The base 1 is provided with a second threaded hole. The bottom of adjusting pole 86 is located fourth mounting groove 17, and the bottom of adjusting pole 86 is seted up and is made things convenient for its pivoted second recess 861, and the joint has the apron 18 rather than the looks adaptation in the fourth mounting groove 17, and apron 18 is top end opening and hollow cylindrical setting. The top end of the adjusting rod 86 is provided with a mounting hole 862, a lower round magnetic sheet 863 is fixedly arranged in the mounting hole 862, an upper round magnetic sheet 864 is arranged above the lower round magnetic sheet 863, the bottom end of the upper round magnetic sheet 864 is positioned in the mounting hole 862, and an adhesive connecting block 865 is fixedly arranged between the upper round magnetic sheet 864 and the lower round magnetic sheet 863.

According to the stable high-impact-resistance suspension wire pendulum accelerometer, after the suspension wire pendulum accelerometer is subjected to external acceleration, the suspension wire can generate inertia moment, the eddy current piece 53 generates displacement, the movement of the eddy current piece 53 causes the circular coil 45 to generate the change of differential inductance, the change of the differential inductance is converted into an electric signal, the eddy current piece 53 is returned to the initial position through current feedback of a loop, and meanwhile, the fed-back current is processed to represent the magnitude of the acceleration.

Because an upper gap is formed between the upper limit rod 82 and the glass tube adhesive sleeve 56, and a lower gap is formed between the lower limit rod 83 and the glass tube adhesive sleeve 56, the normal use of the suspension wire pendulum type accelerometer is not influenced, and when the pendulum-type accelerometer is impacted from the non-working free state to the transition process state, the glass tube adhesive sleeve 56 moves downwards and is abutted against the top surface of the lower limit rod 83, or the glass tube adhesive sleeve 56 moves upwards and is abutted against the bottom surface of the upper limiting rod 82, the lower limiting rod 83 and the upper limiting rod 82 play a limiting role on the glass tube adhesive sleeve 56, and the glass tube adhesive sleeve 56 is moved between the lower limiting rod 83 and the upper limiting rod 82, the damage of the suspension wires caused by the excessive vibration of the glass tube adhesive sleeve 56 is avoided, thereby improving the stability of the suspension wire in use and also improving the stability of the suspension wire pendulum type accelerometer in use.

Meanwhile, the stabilizing block 81 and the flat plate 6 are integrally formed, the stabilizing block 81 not only increases the connection stability of the upper limiting rod 82 and the flat plate 6, but also increases the connection strength of the stabilizing block 81 and the flat plate 6, the upper limiting rod 82 and the flat plate 6, and simultaneously saves the assembly period and labor of the stabilizing block 81 and the flat plate 6. The upper groove 821 is formed in the top end of the upper limiting rod 82, the top surface of the upper limiting rod is located in the upper threaded hole, the lower groove 831 is formed in the bottom end of the lower limiting rod 83, the bottom surface of the lower limiting rod is located in the lower threaded hole, the upper limiting rod 82 and the lower limiting rod 83 are convenient to install, and installation of other components is not affected. Go up spacing pole 82 and firm piece 81 and glue even, down spacing pole 83 and firm piece 81 glue even, avoid other personnel maloperation and influence the mounted position of spacing pole 82, spacing pole 83 down. Set up limit pole 85 and regulation pole 86 on base 1, adjust pole 86 and adjust the parameter of suspension wire pendulum type accelerometer, improve its practicality, limit pole 85 plays the effect of support to pendulum frame 51, the stability that also further improvement pendulum subassembly 5 used.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.